Working with keyboard (Control key, Typing Keys, Function keys, Numeric keys and Navigation keys) Define every topics of keyboard.
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A computer keyboard is a typewriter-style device[1] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter-style keyboards have been the main input method for computers since the 1970s, supplemented by the computer mouse since the 1980s.
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